Permits in St. Johns County: What You Need Before You Improve

Why Does Unpermitted Work Cost So Much More Later Than It Saved?

The screened lanai looks great. The previous owner built it himself, or hired a guy, and it has been standing for eight years without a problem.

Then a buyer's inspector notes it, the title company pulls county records, and there is no permit. Now there is a question mark on the file, the lender has an opinion, the appraiser has an opinion, and a deal that was clean two days ago has a line item nobody budgeted for.

This happens constantly in Northeast Florida, and the frustrating part is that the original permit would have cost a small fraction of what fixing it costs now.

What Generally Requires A Permit

The list is longer than most homeowners assume. Broadly, if work affects the structure, the building envelope, or the electrical, plumbing, or mechanical systems, assume a permit is required until you confirm otherwise.

Common items that require permits in St. Johns County and surrounding jurisdictions include roof replacement, HVAC changeout, water heater replacement, electrical panel work, additions and conversions, screen enclosures and lanais, swimming pools and spas, decks above a certain height, docks and bulkheads, and demolition.

Fences are jurisdiction dependent and also frequently subject to HOA architectural review in master planned communities, which is a separate approval from the county permit. In Nocatee, RiverTown, Shearwater, and similar communities, the architectural review committee approval is not optional and homeowners occasionally forget it entirely.

What Usually Does Not

Cosmetic and maintenance work generally does not require a permit. Painting, flooring, cabinet replacement without plumbing or electrical changes, countertop replacement, and similar finish work typically fall outside permitting.

The gray area is remodels that start cosmetic and become structural. Moving a wall, relocating plumbing, adding circuits, or changing a window opening crosses the line.

When in doubt, the county building department will answer the question directly, and that phone call is free. It is a far better use of ten minutes than any of the alternatives.

Why It Matters At Closing

Unpermitted work creates several separate problems in a transaction, and they compound.

• Disclosure. Florida sellers have disclosure obligations regarding known material defects and conditions affecting value.
• Financing. Lenders may object to unpermitted additions, particularly where they contribute to living area.
• Appraisal. Appraisers may exclude unpermitted square footage from the valuation entirely.
• Insurance. Carriers may raise questions about unpermitted structural or electrical work.
• Negotiation. A buyer who finds it during inspection has leverage that a buyer who was told up front does not.

The last one is the underrated cost. Information a seller volunteers is a fact. Information a buyer discovers is a problem, and problems get priced.

Fixing It After The Fact

Permitting existing work retroactively is possible in many cases, usually through an after the fact permit process. It generally involves an application, documentation of the work, inspections, and often higher fees than the original permit would have been.

Depending on what was built and how, the process may require engineering documentation or opening up finished work so an inspector can see what is behind it. That is where the cost and the aggravation live.

It is still usually the better path. An after the fact permit turns an open question into a closed file, and a closed file does not cost you leverage during a negotiation.

Where Jurisdiction Gets Confusing

Northeast Florida has overlapping jurisdictions and it genuinely confuses people. A home may be in unincorporated St. Johns County, or inside the city limits of St. Augustine or St. Augustine Beach, each with its own building department.

The same applies elsewhere in the region. Jacksonville and Duval County are consolidated, while Jacksonville Beach, Neptune Beach, and Atlantic Beach are separate municipalities with their own requirements. Nassau County and the City of Fernandina Beach are likewise distinct.

Coastal properties may also fall under additional state level review related to coastal construction, which adds another layer for anyone building near the dune line.

The Practical Advice

For homeowners, a few habits prevent nearly all of this.

Pull the permit even when the contractor says it is not necessary. A reputable contractor pulls permits as a matter of course, and reluctance to do so is worth treating as information about the contractor.

Keep the paperwork. A folder with permits, final inspections, warranties, and HOA architectural approvals is genuinely valuable when you sell, and it is much easier to assemble as you go than to reconstruct later.

And for buyers, pull county permit records before you close. They are public, they are searchable, and they take a few minutes. Finding out what has and has not been permitted is one of the cheapest pieces of due diligence available in a Northeast Florida purchase.

Frequently Asked Questions

Does a fence require a permit in St. Johns County?

Fence permitting requirements vary by jurisdiction and fence type, so confirm with the county or applicable municipal building department. Separately, most master planned communities including Nocatee, RiverTown, and Shearwater require architectural review committee approval, which is distinct from a county permit.

What happens if work on a Florida home was never permitted?

It typically surfaces during a sale, when inspections or title research reveal it. Unpermitted work can affect lender approval, cause appraisers to exclude square footage, raise insurance questions, and give buyers negotiating leverage. Many jurisdictions allow after the fact permitting to resolve it.

Do you need a permit to replace a roof in Florida?

Yes. Roof replacement requires a permit in St. Johns County and surrounding jurisdictions. Permit records are also how buyers and insurers commonly verify roof age, so a permitted replacement creates useful documentation.

Who issues building permits in Northeast Florida?

It depends on the property's location. Unincorporated areas are handled by the county building department, while municipalities such as St. Augustine, St. Augustine Beach, Jacksonville Beach, Neptune Beach, Atlantic Beach, and Fernandina Beach have their own. Coastal construction may involve additional state level review.

Search Northeast Florida Homes

Browse active listings across Northeast Florida, from master-planned communities in Nocatee, RiverTown, Tributary, Shearwater, and St. Johns County to coastal homes in Ponte Vedra Beach, Jacksonville Beach, Neptune Beach, Atlantic Beach, and Fernandina Beach.

What To Do Right Now

If you have improvements on your home that were never permitted and you are thinking about selling, sorting it out before you list is almost always cheaper than sorting it out during a contract.

Call or text Joey Larsen at 904-863-6679, or visit RetireMeToFlorida.com to get started.